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http://dx.doi.org/10.4150/KPMI.2014.21.5.382

Spark Plasma Sintering of Fe-TiC Composite Powders  

Lee, Yong-Heui (School of Materials Science and Engineering, University of Ulsan)
Hyunh, Xuan-Khoa (School of Materials Science and Engineering, University of Ulsan)
Kim, Ji Soon (School of Materials Science and Engineering, University of Ulsan)
Publication Information
Journal of Powder Materials / v.21, no.5, 2014 , pp. 382-388 More about this Journal
Abstract
Fe-TiC composite powder was fabricated by high-energy milling of powder mixture of (Fe, TiC) and (FeO, $TiH_2$, C) as starting materials, respectively. The latter one was heat-treated for reaction synthesis of TiC phase after milling. Both powders were spark-plasma sintered at various temperatures of $680-1070^{\circ}C$ for 10 min. with sintering pressure of 70 MPa and the heating rate of $50^{\circ}C/min$. under vacuum of 0.133 Pa. Density and hardness of the sintered compact was investigated. Fe-TiC composite fabricated from (FeO, $TiH_2$, C) as starting materials showed better sintered properties. It seems to be resulted from ultra-fine TiC particle size and its uniform distribution in Fe-matrix compared to the simply mixed (Fe, TiC) powder.
Keywords
Fe-TiC; High-energy milling; Spark-plasma sintering; Reaction synthesis;
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Times Cited By KSCI : 1  (Citation Analysis)
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